rust-clippy/tests/ui/int_plus_one.rs

// Copyright 2014-2018 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

#[allow(clippy::no_effect, clippy::unnecessary_operation)]
#[warn(clippy::int_plus_one)]
fn main() {
    let x = 1i32;
    let y = 0i32;

    x >= y + 1;
    y + 1 <= x;

    x - 1 >= y;
    y <= x - 1;

    x > y; // should be ok
    y < x; // should be ok
}